Here's what my ducks have (total 18 ducks, mostly bantams like calls & mallards):
4X8 run 4 ft tall with attached 3x3 nest box with lift lid 2 ft tall
It's actually a bit small for that many ducks, even bantams, but luckily most of mine are not full grown yet & are only about a month & a half old. I'll be making another pen, maybe 2, identical to this one before Winter so I can grow out the Runner & Ancona babies I have in the bator & separate my larger ducks from the bantams & grow outs. I have a 2x3 dog box 3 ft tall that I'm working on making the roof into a lift lid for the next pen. I'll use it for my Runners &/or Anconas since they are taller than the calls & mallards.
I can't free-range since I'm in town, so I just put a little pool in my pen for swimming.
Edited by Nsampsel - 8/5/12 at 7:47pm